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pogonyaev
2 years ago
12

A population of beetles are growing according to a linear growth model. The initial population (week 0) is P0=9, and the populat

ion after 7 weeks is P7=37.
Find an explicit formula for the beetle population after n weeks.


After how many weeks will the beetle population reach 93?
Mathematics
1 answer:
Marat540 [252]2 years ago
5 0

Answer:

y = 4x + 9

week 21

Step-by-step explanation:

first I did 37-9 and got 28 I divide that by 7 ( seven weeks) and got 4 so I know the slope is 4.

so to find how many weeks till 93 I did; 93 = 4x + 9. We have to get x by its self so I minus 9 by both sides and got 84 = 4x. So now we divid both sides by 4 to get x by its self and we end up with 21 = x

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If this is incorrect please let me know!! Hopefully this helped
5 0
3 years ago
Consider the function represented by the table. For which x is f(x)?=–3 –7 –4 4 5
svp [43]
-7. When you look at the graph it is divided into x and f(x). f(x) is the same as y so the question is basically asking you what is x when y is -3. So you just go to the -3 under f(x) and look over to find that the answer is -7
7 0
3 years ago
Read 2 more answers
You wish to purchase a new car and can afford monthly repayments of up to $250 per month. You see a car you like for $12,000 and
White raven [17]

Answer:

Since the finance’s monthly required payment of $304.07 is greater than the $250 monthly that you can afford, this implies that you CANNOT afford to purchase the car on finance.

Step-by-step explanation:

The monthly required payment of the finance can be calculated using the formula for calculating the present value of an ordinary annuity as follows:

PV = M * ((1 - (1 / (1 + r))^n) / r) …………………………………. (1)

Where;

PV = Present value or finance amount = $12,000

M = Finance’s monthly required payment = ?

r = Monthly interest rate = Annual interest rate / 12 = 17.9% / 12 = 0.179 / 12 = 0.0149166666666667

n = number of months = Number of years * 12 = 5 * 12 = 60

Substitute the values into equation (1) and solve for M, we have:

$12,000 = M * ((1 - (1 / (1 + 0.0149166666666667))^60) / 0.0149166666666667)

$12,000 = M * 39.464764662266

M = $12,000 / 39.464764662266 = $304.07

Since the finance’s monthly required payment of $304.07 is greater than the $250 monthly that you can afford, this implies that you CANNOT afford to purchase the car on finance.

4 0
3 years ago
Which equation exemplifies the commutative property of addition???
Vitek1552 [10]

Commutative property is "a + b = b + a"

Therefore your answer is 1. 5 + 6 = 6 + 5

3 0
3 years ago
Read 2 more answers
Number of comments got maxed out so here's another post.
suter [353]
That’s cool. i need p01nts so imma comment
7 0
3 years ago
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